Bearing pile construction



Jan. 16,' 1940. G. G, GREULICH BEARING PILE CONSTRUCTION,

Filed` Nov. 25, 195e F IE- 2.

FIG- .3.

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las n The present inventionrelates tc load-bearing pile constructions, and particularly, to the forma-` tion of enlargements to the normal bearing pile` section only in that `portion of; thepile which is inrm load-carrying soil.` l l, e i `An object of the present inventionrelates to the formation of a bearing pile having, tapered` n timber lagging Vmembers secured"` te a, tapered `bodyv member; l i l l l Y v Other objects and advantages will become apparent as the description proceeds and refer- `ence is had tothe accompanyingvdrawing, in i y which: l

` Figure 1 is an elevation showing a bearingvpile constructed from timber to whichltaper'ed timber lagging members are secured; n

Figurez is a section on line II-II of Figure `1;and, "ure1.

In the drawing,` the bearing pile comprises a tapered main `body portion 2, upon `which is secured, in any conventional manner, one or more timber lagging members 3.

its top portion to its lower `or penetrating end, so that its cross-section decreases in width from `its top to its bottom. Ihetapered lagging memare provided, upon one face,` with a tapered sur- ;face with the greatest cross-sectional area of K each lagging member being at its top and the l taper beinggradually downward to ajpoint adjacent the penetrating end of the main body por- 35 tion 2, so that the lower `end. of each lagging member has a. less cross-sectional` area than its top portion. The timber lagging members 3 are Athrough the mainbody portion of the bearing tion, as dened by the following claim.`

Figure`3 is a section on line `IIIfIII `ufFiga The mai-n body portion 2 tapers gradually from bersfwhich are shown as comprising timber piles,"

4 creasing the anglefoftaper of the bearing pile PATENT oFFICEN secured to the main body portion 2 by the bolts lv which pass through the lagging on both sides and pile and secure by nuts ,5;

Under the present construction, the use of ta- 5 pered piecesof lagging, `characterized by having their top portions enlarged, results in an increase in the angle of taper of the bearing pile which produces greater load-carrying capacity `of the same, due to the increase in soil displace- 10 ment.` l While I have shown and described a speciflc embodiment of the present invention, it will be seen that I do not wish to be limited exactly thereto, since various modications may be madeA Without departing from the scope of the inven- I Claim: l

A bearing pilecomprising a tapered mairrbody portion including a penetrating point, Vsaid tapered main body portion having' a cross-sectional area decreasing gradually from its top to its penetrating point, and lagging members secured to said main bodyto provide a tapered enlargement extending only over that portion `of `said`:

bearing pile which is in firm load-carrying soil, said lagging members comprising timber piles, each provided with an outer tapered surface with the greatest cross-sectional area of each lagging member being at its top and the taper being gradi ually downward toa pointadjacent the penetrating end of said main body member, therebyinand providingfor greater load carrying capacit thereof.

GERALD G. GREULICH. 

